Answer:
A) sign that his day would not go well.
Explanation:
He took the rain and stormy weather as a sign that his day would not go well.
B - is
The subject of the sentence is forecast. The subject is singular, so the verb must also be singular. Both A and C are plural verbs.
When a helping verb in is used with the ____, the progressive form of the verb is created.
C: present tense
